<span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">Yeah both guest have the same Harddrive attached with the virtual scsi controller configured <div>as Physical to set a policy to allow virtual disk to be used simultaneously by multi virtual machines.</div>
<div><br></div><div>as /dev/sdb1</div><div><br></div><div><div>node:</div><div> ip_port = 7777</div><div> ip_address = 10.0.0.1</div><div> number = 0</div><div> name = mdcvmsmes01</div><div> cluster = ocfs2</div>
<div><br></div><div>node:</div><div> ip_port = 7777</div><div> ip_address = 10.0.0.2</div><div> number = 1</div><div> name = mdcvmsmes02</div><div> cluster = ocfs2</div><div><br></div><div>
cluster:</div><div> node_count = 2</div><div> name = ocfs2</div></div></span><br><div class="gmail_quote">On Thu, Dec 9, 2010 at 4:15 PM, Joel Becker <span dir="ltr"><<a href="mailto:Joel.Becker@oracle.com">Joel.Becker@oracle.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">On Thu, Dec 09, 2010 at 04:02:14PM -0600, brad hancock wrote:<br>
> I have two vmware guests that share a OCFS2 partition through VMWare VMFS.<br>
> It resides on a SAN.<br>
<br>
</div> Let me see if I understand the configuration. You have a SAN.<br>
On that SAN is a LUN. You have one VMWare host in this configuration.<br>
The VMWare host has formatted that LUN for VMFS. There is a disk image<br>
on the VMFS that both guests see as sdb. Is this correct?<br>
<div class="im"><br>
> Each host has the following error in the kernel log:<br>
><br>
> [2037805.922718] end_request: I/O error, dev sdb, sector 1735<br>
> [2037805.922974] (0,0):o2hb_bio_end_io:225 ERROR: IO Error -5<br>
> [2037805.923370] (27506,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5<br>
><br>
><br>
> We also see the following on both machines:<br>
><br>
> (1888,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5<br>
> [202381.822030] (1888,0):o2hb_do_disk_heartbeat:762 ERROR: Device "sdb1":<br>
> another node is heartbeating in our slot!<br>
><br>
> I notice the sector is the same on both machines: 1735.<br>
><br>
> Is this an issue with vmware?<br>
<br>
</div> The read errors ("another node is heartbeating in our slot")<br>
sound like VMWare is not allowing the nodes to see each other's<br>
activity. The write error is more surprising, but it could be part of<br>
the same issue.<br>
<br>
Joel<br>
<br>
<br>
--<br>
<br>
"Every day I get up and look through the Forbes list of the richest<br>
people in America. If I'm not there, I go to work."<br>
- Robert Orben<br>
<font color="#888888"><br>
Joel Becker<br>
Senior Development Manager<br>
Oracle<br>
E-mail: <a href="mailto:joel.becker@oracle.com">joel.becker@oracle.com</a><br>
Phone: (650) 506-8127<br>
</font></blockquote></div><br>